Indebtedness (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Summary of Company's Credit Facilities

Following is a summary of the Company’s debt, net of unamortized debt issuance costs:

	December 31,
(In Thousands) 1	2017		2016
DAMI Credit Facility	$	—	$	47,302
Revolving Facility	—		—
Senior Unsecured Notes, 3.95%, Due in Installments through April 2018	24,994		49,975
Senior Unsecured Notes, 4.75%, Due in Installments through April 2021	239,784		299,562
Term Loan, Due in Installments through September 2022	96,272		94,626
Capital Lease Obligation:
with Related Parties	1,314		3,095
with Unrelated Parties	6,434		3,269
Total Debt	368,798		497,829
Less: Current Maturities	97,192		146,515
Long-Term Debt	$	271,606	$	351,314

¹ Total debt as of December 31, 2017 includes unamortized debt issuance costs of $1.5 million. The Company

Future Maturities of Long Term Debt and Capital Lease Obligations

Future principal maturities under the Company’s debt and capital lease obligations are as follows:

(In Thousands)
2018	$	97,556
2019	72,768
2020	71,670
2021	70,693
2022	57,561
Thereafter	—
Total	$	370,248